837 Washington

837 WashingtonJoseph BaselCarl Zanier

ASCE Met Section Spring Seminar 2015

837 Washington

Preservation of existing façade & tub below grade with 2’-6” mat foundation





Overview from the High Line


New steel at upper levels frames into preserved existing façade at lower levels


Curtainwall behind exoskeleton


Twisting floorplates pivot around masonry-clad core


Alternating deck direction reduces necessary beam depth



Tapered shims applied between connector plates


7-ft. column transfer “joints” prefabricated off-site



Steel connection detailing model


Built-up plate girders prefabricated off-site and bolted together on-site


Under construction – Bolting the frame



Only beam web passes through building envelope to exterior frame


837 Washington

Thank YouGilsanz Murray Steficek LLPEngineers and Architects

Engineering

837 Washington